Typewriting-machine



0. WOUDWARD.

TYPEWR'ITING MACHINE.

APPLICATION HLEDJ'ULY 29,19l9.

1,342, 1 9'?. Patentedt'runel, 1920.

INVENTUR 04,6411,- '7i/rmi@ 'H15 ATTURNEY wljmglSEE v 0. WUODWARD.

TYPEwmTmG MACHINE.

APPLiCATION FILED JULY 29, 1919. t

v Patented June L 1920.

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Walls 14 and 15 of the groove. lt is to provide always a perfectly tight clamping of the pivot wire in the groove, that l form certain of the walls thereof inclined one to 5 another. Thus, as the pivot Wire is forced against the inclined-bottom Wall 16 of thev groove, there is a tendency to :torce it up the incline. and against the wall l5. "if the rod isr smaller than the distance between the walls la and the rod will be crowded against the walls and 16, tlius forming a three-point bearing between the fingers20, the -Wall l5., and the Wall 1F, which firmly hold the rod against play in its seat? By firmly holding y ln. order to enable any individual sub' lever, or any desired number-of sublevcrs,

v to be removed from the support l0 after .1 the parts are assemblethd provide screws `9a which are threaded in tapied openings in the base 12 on opposite sides thereof and.

in line with the pivot \viref17, the unthreaded ends of said screws entering the v groove When these screws are removed, and the pivot rod isrelievcd from the clamp ingaction of the strip 18, the rod may be displaced longitudinally the required distance through one of the openings previouslyoccupied. by a screw 9a. f The 'forwardly extending arm 8 of each .angular sublever is slotted at-22, to receive the stem of a headed pin 23 which proi0 jects laterally from an upright connecting arm 24; of the associate key lever, or key con trolled lever, Each -key lever is devoid of lateral bends, extending fore and aft of the machine in a. single vertical Iplane between its kcy'26 andl the point where it is fulcrumed on the fulcrum plate 2T secured-to the base of the machine. A. 'front guide comb 28 and a rear guide comb 29 guide each key lever in its movement. lt will be seen that each key lever is located directly beneath the slot 9 in which its companion sublever 8 is fulcrumed. This is rendered possible 'by bending the connecting arm 2st of each'key lever so that it is olf-set laterally with reference to its key lever,'and to the plane of movement of the latter. By this arrangement each type action has the fulcrum otits sublever, that portion of the sublever contained within its bearing slot 9, the slotted arm 8, the points of contact between thelpin 23 and the sublever,

and the fulcrum of the key lever, all lo cated inthe same vertical plane, which is the plane of movement of the key lever. It will be understood therefore that.in

transmitting motion from each rinting key to its sublever, force is directe in a single plane, avoiding all side 'or lateralstrain on the parts in question which might tend l to cramp themin their hearings and guides. 'lo

For example, side 'strain'between the key! lever and sublever ordinarily would resultin a cramping action between ythe key leverand its guides 28 and 29 and a lateral'ldeilection of the arm 24. side from the in@I 75 creased frictional resistance thus offered to "the operation of the type action, a rattlingv noise is produced by the key lever striking side walls of the guides 28 and 29. The lateral deflection referred to of the arm 8.0 24 is apt to carry the head of the pin 23 against 4theslotted arm 8Zt of the `companion sublever, resulting in further side strain and increased friction on theparts, and producing a snapping or clicking noise. by the head of the pin 23 striking the sublever.

By my present inventionv l am enabled to. overcome these defects,'avoi.ding the clicking and rattling noises ordinarily produced in other type actions and preventing a slug' 90 f gishness and undue friction on the parte resulting from'side strain thereon and the cran'iping action thereof. By reason of 'the fact that there vis no cramping action of the f key levers in their guides of the present construction, I am enabled to make the guide combs' 28 and 29 with narrow fguide slots as indicated at 29a, thus elfect ng' -a Y closer i'it 'between each key -lever and the side walls ofthe slots in the guides, which results in less opportunity for the levers to rattle -in the guides, thereby reducing or entirely eliminating the noise thus ordinarilyr produced. f F rom an inspection of Fig. 2 it will be understood that each ofthe type actions at and near the center of the system has the engaging portion of its pin 7 cut bythe plane ot movement of its key lever thus further avoiding lateral strain on the parts. 110

F rom tlie foregoing description it will be rmderstood that by a simple construction 1 have provided an easy acting Vtype action which avoids the undue friction and noise ordinarily produced in type .actions in which there is a side strain effected between the key controlled levers and the sublevers. What l claim as new and desire to secure by Letters Patent, is

l. In atypewriting machine, the combin nation'of a key controlled lever, and a sub- Alever fulerumed in the plane of movement v ofthe key controlled lever, one of said levers having a connecting arm oli-set laterally from the plane thereof and carrying a pin l which works in a slot inthe other lever, the point of engagement 'between the Din and the walls of the slot being in the plane of movement of the key 'controlled lever. Y

2.' In a typewriting machine, the combi- `1:50

1,342, iev

.'nation of a key controlled lever of the second order, and an angular sublever 'fulcrumed in the same plane as the key controlled lever, one of said levers Ihaving a connecting arm off-set 4from' its plane of movement-and carrying a pin', and the other arms moving in `said lever having a slot in which said pin works, the slotted portion of the last .mentioned lever moving in the plane or" movement of the key controlled lever.

4. In a typewriting machine, the coinbi-v nation of a key lever of the second order having a connecting arm off-set from the plane of movement of said lever and carrying a laterally projecting pin, and an angular sublever fulci'umed in the plane of said key lever and slotted in one of its arms to receive said pin, said' slotted arm moving in the plane of movement of the key controlled lever.

5. In a typewriting machine, the combination of a key lever of the second order having an upwardly projecting connecting arm off-set from the plane of movement lof said lever, an vangular sublever ulcrumed above said key lever in the plane of movement. of the latter andl having one of its plane and provided with a slot therein, and a laterally projecting pin carried by said connecting arm and Working in said slot in the 'subleveix 6; In' a typewritiug machine, the combination of'a key controlled lever having a connecting arm off-set from the plane of movement of said lever and carrying a laterally projecting pin, a sub-lever fulcrurned in said plane and slotted to'rece'ive said pin, the slotted portion of the sublever also moving in said plane, a laterally projecting pin carried by said sublever, and a type bar having a slot in which the pin on the sublever Works, the engaging portion, of the pin on the subleverbeing cutby the plane of movement of the key controlled. lever.

7. In type actions 'for typewriting or like .machinesg a slotted support'having a groove that extends transversely of Asaid slots, cer tain of the walls of said groove being inclined one to another, a pivot rod or Wire seated and held in said groove against said walls, and members pivoted on said rod or Wire and working in said slots.

8. In type actions for typewriting or like machines, a slotted support having a groove that extends transversely of said slots and that has a has an inclined bottom Wall a pivot rod or Wire `in said groove, means or holding said pivot' rod or wire seated against said inclined bottoni wail, and members pivoted on said rod or wire and Working said slots. i 9. in type actions for typewrlting or like machines, a slotted support having .a groove that extends transversely of said slots, certain of the Walls of said grove being iii-- clined one to another, a holding device comprising a strip having fingers that extend into said groove between slots in the Support and bear against the pivot rod or wire and held it seated against said Walls, and members pivoted on said rod or wire and working in said sl'ots.

10. ntype actions for typevvriting or like machines, a slotted tom wall, a pivot rod orwire iii said roove, a holdlng device comprising a strip aving fingers that extend into said groove betvveenrv slots in the support and bear against 'the pivot rod or wire and hold it seated against said inclined bottom members piveted on Working in said slots.

11. ln type actions for chinas, the combination@1 said red or v'vire and typevvriting imaa slotted support groove extending .transversely of the slots in said support, a pivot rod in said groove, a holding strip provided ivith iin- -gers which enter said groeve andy bear against the pivot rod, and provided also with a iange on which the strip may receive a rocking adjustment, means for adjusting said strip to and for holding itin place, and members which are pivoted' on said rod and Work in said slots.

f 12. In type actions ior typewritng machines, the combination or a slotted support that has a groove extendingftransversely of the'slots in said support, a pivot rod in said groove,

a holding stripy which extends' wail ci the groove, and

throughout the slotted portion of said support and is provided along one edge thereof with a series of fingers which enter the groove between slots in the support and bear against the pivot rod, said strip llaving at its opposite edge bearing flange to enable the strip to receive a rocking adjustment,'screws which engage said stripv and adjust it to'and hold it in place, and niembers which are pivoted on said rod and .'Work in said slots.

Signed at the borough of Manhattan, city of New York, in the county of New York,

and State of New York, this 214th day of' July, A. D. 1919.

OSCAR i WOODWARD. 

